Home / 612,682.44-845,376.78-357,984.36

Finding the Fourth Proportional to 612,682.44, 845,376.78 and 357,984.36

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Solution

The fourth proportional to 612,682.44, 845,376.78 and 357,984.36 is: 493,945.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,682.44 : 845,376.78 = 357,984.36 : x
  2. Step 2: Convert to fraction form
    612,682.44/845,376.78 = 357,984.36/x
  3. Step 3: Cross multiply
    612,682.44x = 845,376.78 × 357,984.36
  4. Step 4: Simplify right side
    612,682.44x = 302,631,665,547.16
  5. Step 5: Solve for x
    x = 302,631,665,547.16/612,682.44
  6. Step 6: Final answer
    x = 493,945.39

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.